OK, here's the backstory.
In our quest towards eventually living off our 1/4 acre lot, I have been experimenting with various agricultural methods I have learned about through the years. One of those methods is a favorite among survivalists; the idea is, you plant potatoes inside a tire, then add dirt and tires to the potato plant as it grows upward. When the plant has fully grown, according to what I have heard, you will be able to pull off each tire, knock the dirt out, and have potatoes all the way down. Basically you grow them vertically instead of horizontally.
You with me so far? Anyway, so here's the scoop. I planted my potatoes inside the tire, then noticed last Saturday it was time to start working them into the second tire and adding dirt. While I had been raised with the idea that potatoes need to grow in clay, so many people around here grow them in sandy soil that I don't have to question whether or not they'll grow here. So I dutifully added the second tire and added sand until only the topmost leaves were poking out. Wednesday I noticed I had to add some more sand, and today, the second tire is HALF FULL of dirt! This dirt's better than Miracle Gro, for cryin' out loud! I just hope there's taters all the way down.
(side note to Texaswahine and/or lostintexas: what the heck did you guys add to this soil?!?)